The Development of Aluminum-Lithium Alloys.

reportActive / Technical Report | Accession Number: ADA090138 | Open PDF

Abstract:

Aluminum-lithium based alloys have shown promise as high strength, high modulus, low density alloys, but suffer from low toughness levels currently unacceptable in aerospace design. The present study was directed toward increasing the fracture toughness of such alloys in sheet form, primarily through alloying. Attempts to increase fracture toughness were made through modification of the fracture-controlling Al3Li precipitate, addition of dispersoid-forming elements, and the use of coprecipitation of other phases.

Author(s):
Gayle, Frank W.
Author Organization(s):
REYNOLDS METALS CO RICHMOND VA METALLURGICAL RESEARCH DIV
Descriptive Note:
Final rept.,
Pagination:
0178

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00019-78-C-0485
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_1_Force Support; JCA_6_Net Centric; JCA_1.2_Force Preparation; JCA_4.6_Engineering; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.2.3_Educating; JCA_3.2.1_Kinetic Means; JCA_6.4.1_Secure Information Exchange; JCA_6.1_Information Transport
Communities of Interest:
Air Platforms
Descriptor(s):
*MECHANICAL PROPERTIES, *ALUMINUM ALLOYS, *RESEARCH MANAGEMENT, *LITHIUM ALLOYS, MICROSTRUCTURE, MODIFICATION, MODULUS OF ELASTICITY, TOUGHNESS, FRACTOGRAPHY, ADDITION REACTIONS
Field(s)/Group(s):
Properties of Metals and Alloys
Keyword(s):
Coprecipitation, Dispersoid forming elements, LPN Reynolds 38 833 8Z02, LPN Reynolds 39 848 8Z02, LPN Reynolds 30 846 8Z02
Report Date:
1980 Jul 31